Transaction not yet indexed

MtEXLqnwRnSFT1AccPLXtmZtbjunyuzn1fXaaJR5DAaEfRZYoK2mA57b1tEyvt1T4DVsHgDAWfYAX1x7gihkTkA

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.